Home / 314,965.70-472,448.55-128,111.30

Finding the Fourth Proportional to 314,965.70, 472,448.55 and 128,111.30

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Solution

The fourth proportional to 314,965.70, 472,448.55 and 128,111.30 is: 192,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,965.70 : 472,448.55 = 128,111.30 : x
  2. Step 2: Convert to fraction form
    314,965.70/472,448.55 = 128,111.30/x
  3. Step 3: Cross multiply
    314,965.70x = 472,448.55 × 128,111.30
  4. Step 4: Simplify right side
    314,965.70x = 60,525,997,923.62
  5. Step 5: Solve for x
    x = 60,525,997,923.62/314,965.70
  6. Step 6: Final answer
    x = 192,166.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.